Fluxonium Crash Course

The two common types of transitions in fluxoniums are fluxon and _______

Answer explanation

The difference between a flux qubit and a fluxonium is the number of junctions

• True

• False

Which is the label for the second excited state of the fluxonium?

• h

• e

• f

• g

Answer explanation

Which sentence is wrong?

• At half a flux quantum, even transitions are suppressed.

• At zero external flux, there are no even transitions allowed

• Outside the symmetry point, fluxmon transitions are usually reduced

• Charge and flux matrix elements do not have the same functional shape

Answer explanation

RWA (Rotating Wave Approximation) can be safely used in fluxoniums

• True

• False

_________ is the reset method that consists in measuring the qubit state prior to running the algorithm, and applying a pi pulse if the qubit is measured at |1>.

Dispersive shift in fluxoniums is usually dominated by transitions outside the computational space

• True

• False

Answer explanation

Which is the equivalent temperature of 20GHz?

• 1K

• 200MK

• 100mK

• 50mK

Which one is true?

• Flux noise gets reduced with lower frequency

• Flux noise gets reduced with lower inductance

• Dielectric noise gets reduced with lower frequency

• Purcell noise does not depend on transition matrix elements